I was really lucky and found a good deal on someone reselling a heated rack and thermostat. It's back heated, and has 6 qrt tubs, but I figure I can either move into a bigger rack when my snakes are older, or just knock out some of the deviders and stick wider tubs in it as they grow. I was told that 6qrt tubs were a good fit for them right now, being babies.

I'm not sure how ideal the back heat is comoared to belly jeat, but I figure at the least there's less risk of burns.